TH55-E70 Oilfield Transmission

Specifications

Full Specifications

Transmission Specifications

Gross Input Power
3300.0 BHP

Gross Peak Input Torque
9350.0 ft-lb

Rated Input Speed
1900.0 r/min

Gears
7F/0R

1F Gear Ratio
6.25

2F Gear Ratio
4.59

3F Gear Ratio
3.38

4F Gear Ratio
2.48

5F Gear Ratio
1.83

6F Gear Ratio
1.36

7F Gear Ratio
1.00

Equipment

Standard Equipment

Cat Engines for Optimized Power Train

• Cat C3512C (HD)
• Cat 3516C (HD)
• Cummins QSK50
• Cummins QSK60
• MTU 12V4000
• MTU 16V4000

Transmission Rotation

• Input rotation — counterclockwise
• Output rotation — counterclockwise(as viewed from rear)

Torque Converter

• Integral torque converter
• Series — TC64442-ESLF
• Stall torque ratio — 2.23

Clutches

• Clutches — electro-hydraulic fully modulated, oil cooled, multidisc
• Clutch modulation control — Cat Electronic Clutch Pressure Control (ECPC)

Installation Connections

• 2 oil cooler lines
• 1 electrical connector
• 1 pump

Oil System

• Cat Transmission/Drive Train Oil-4 (TDTO)
• Sump oil temperatures
• Hydraulic fill capacity — Approx. 189 L (50 gal), subject to cooler size, lines, and installation.
• Filter Type — 6 micron synthetic, cartridge remote mount

Mountings

• Input connection (flywheel) — SAE #0
• Output connections (flange)
• Structural application subject to Caterpillar approval

Control System

• Electronic Control Unit (ECU)
• Electronic data link, SAE J1939
• Electrical system 24V

Power Take-Off Drives

• Location
• Mounting type
• Rated power

Resources

TRANSMISSIONS FOR THE PETROLEUM INDUSTRY

TH55 E70 SHOW SPEC SHEET

TH55-E70 TRANSMISSION - PETROLEUM